A sports car has a mass of 2 Mg and an engine efficiency of =0. 65. As the car moves forward, the wind creates a drag resistance on the car defined by =1. 22 , where v is the speed in m/s. The car accelerates at 5 m/s2, starting from rest. Determine the engine’s input power when t = 4 s.

Consider each of the electric- and magnetic-field orientations given next. in each case, what is the direction of propagation of the wave? a)\vec ein the +xdirection,\vec bin the +ydirection. choose+ x direction- x direction+ y direction- y direction+ z direction- z direction b)\vec ein the -y direction,\vec bin the +x choose+ x direction- x direction+ y direction- y direction+ z direction- z direction c)\vec ein the +z direction,\vec bin the -x direction. choose+ x direction- x direction+ y direction- y direction+ z direction- z direction d)\vec ein the +y direction,\vec bin the -z direction. choose+ x direction- x direction+ y direction- y direction+ z direction- z direction